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当表单被映射到流程活动时，Joget将使用PID作为Application Form表格中的主键来创建一个记录行。如果使用Form Data Update Tool (Enterprise)
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Things get tricky if you are trying to update a Form that is NOT directly part of the flow. Joget will not be able to use the same PID to match the record row.
更新同一个表单，Joget将能够找到数据库表并使用PID匹配主键（PK）。
如果您尝试更新不是流程的一部分的表单，情况会变得棘手。Joget将无法使用相同的PID来匹配记录行。
表名 Table Name: | transactions |
|---|---|
PK | id |
| name |
FK | account_no |
Figure 1: Transaction table which is mapped to the process activity.图1：映射到流程活动的事务表。
Table Name: | accounts |
|---|---|
PK | id |
| name |
| expiry |
Figure 2: Account table which is not part of the process activity but has relationship to the Transaction table.图2：账户表，它不是流程活动的一部分，但与Transaction表有关系
Figure 3: Mapping of Form Data Update Tool for Account table.The solution is simple. One will simply need to define a "id" field in the Update Fields section. State the value that would correspond to the record identifier of the Form.
图3：帐户表的表单数据更新工具的映射。
解决方案很简单。人们只需要在Update Fields部分定义一个“id”字段。说明对应于表单记录标识符的值。